From Peacefrog:

I want to introduce the Star Citizen Community to my Rock Breaker Mining Tool.

https://rockbreaker.peacefroggaming.com/

This tool will allow you to test your mining ship or group configurations against rocks of various mass, resistance and instability. Its a great tool for the new miner to learn the ins and outs of Star Citizen mining as well as the Adept Prospector’s breaking the biggest rocks in the verse.

Information sourced from the community hub:
https://robertsspaceindustries.com/community-hub/post/rock-breaker-mining-tool-122DnewAHBVQM